Apparatus for purifying liquids



June 30, 1925.

G. EPPRECHT APPARATUS FOR PURIFYING LIQUIDS Filed April 18, 1924 2 Sheets-Sheet 1 WITNESS June 30, 1925. 1,544,383

G. EPPRECHT APPARATUS FOR PURTFYING LIQUIDS Filed April. 18, 1924 2 Sheets-Sheet. 2

Patented June UNlT-ED STA mm EPZPBECH'I, OF

TES PATENT OFFICE.

mnenwoon, imw Jmzsnr.

mantras ron ruarrvme mourns.-

Applieatlon filed April 18, 1924. Serial No. 707,883.

( frequent service inlabora'tories. The prin- -cipal object of the invention is to combine these three in a single, compact apparatus in such manner that the steam' or other gas produced in the process of distilling will also be utilized to heat the .drying oven or lizer and the water bath.- .Other important objects are to provide a practical apparatus in which by the process of distillation a Fig. 5.

cepting for one or more pipes E (o is shown), extending from diaphra the latter is closed.

.liquid, as water, may be rendered chemically pure and the liquid of condensation may be drawn ofl' for use, either hot or cold.

In the accompanying drawings,

Fig. 1 is a side elevation, partly in section, of the improved apparatus;

Fig. 2 is a fra mentar view showing a modification of w at is s own in Fig 1;

Fig. 3 is a section on line 3--3-, Fig 1;

Fig. 4 is a fragmentary section on line 4-4, Fig 1; v

Fig. 5 is a vertical sectional view of a distilling appartus of modified form; and

Fig'6 is a sectional view on the line ti -,6,

a is a shell here shown as an upright cylinder having'a bottom wall If, a horizontal diaphragm 0 arranged a relatively short distance above wall 6, and a top wall d which is depressed to form a li uid receptacle D which may have a suitab e cover D.

The space between the wall b and diaphragm 0 forms what I term'a boiler A, which has a liquid supply pipe N communicating there with below the' liquid level 12. therein. Ex-

nly one 0 to near the topof what I'term the con ensing chamber B (which exists between the diaphragm and wall (1 and forming a gas con from the boiler A, xceptin'g. for a drawofi c ock O, a pi J and-a vent pipe Qto be described the 0 ball \is'closed. 'When the boiler is hegted-by -ameans, as

below it the steam generated from-the water therein rises through pipe E and being condensed is collected in the chamber B.

Conducting means for a cooling liquid is I provided thus: Attached to the side of the shell 01 is a vessel F-which is preferably crescent-shaped in plan and embraces about one-half of the diameter of the shell, reaching from the top wall downward of chamber B and having a cold .water supply pipe K delivering into it near the bottom thereof,

K being a shut-off valve in this pipe. Deading from the upper portion of vessel F,

laterally and then downwardly, is an overflow pipe M, and connecting vessel F with receptacle D is a short horizontal pipe H arranged approximately at the same level steri-\-as that atwhich pipe M is connected to vessel F, A part of the conducting means is a trap G into which pipe M\debouches, said trap having an outlet L arranged at a suitable height and adapted to deliver into a" receptacle L which discharges into a sewer. The pipe N affords communication between the boiler and the trap, and the outlet L is ,.placed at such a level as to maintain the Water in the boiler at the proper height. The already mentioned pipe J- affords means for drawing off the water of condensation from chamber B, and in order that this water may be drawn cooled this pipe may either be bent down into the trap G and then upward to a suitable height above the bot-" tom of the condensing chamber (Fig. -1) or it may extend in cooling contact with the M (Ii 2, a J).

pi' e V .lhe con ucting means for the cooling liquid thus serves, at in steam therein and to .cool the draw-ofi pipe 'J (or J1). It also serves tomaintain the water inthe water'bath'l) and the water in the boiler at constant level.

The vent Q leads fromchamber B above the water level therein up through vessel F to the top wall d, and it discharges there- P through into the atmosphere, thereby permittinglthe escape of foreign gases separated from t 6 water and atmospheric pressure to exist in chamber B.

C- is a drying ovenor which is formed'b .a suitable shell e o u only at one side an projecting into the s ell a so that it opens laterally thereof and is heated bv the steam in the condensing chpmsterilizing chamber F, to cool thecondenschamber and cause condensatlon of thev x, m bet-B; 1c in; door 0' for; its sa opening. v

The user has available in a single apparatus means to purify liquid by distillation,

a waterbath D and a drying oven, the water .by the bottom of a receptacle 6 above which may be said to be the condensing chamber B, the boiler communicating with the condensing chamber B- by the conducting means E which is in this case an annular space existing .between the side wall of the receptacle 6' and shell a. The receptacle B is supported through a tubular connection 6 by a transverse pipe b which traverses and extends through the shell (1; there may also be spacing brackets 1) arrangedbetween receptacle 6 and shell a. Whenthe water in theboiler, maintained at the level It, is heated by any suitable means X, the steam generated passes up through the conducting means and falls into the receptacle b as condensate. In the top portion of the shell a is arranged a downwardly conical wall 0" which forms the bottom of a Vessel D which may have, if desired, a removable cover D. This vessel affords meansto condense the vapor in chamber B. Water may be supplied to the vessel D from a pipe H having a shut-off valve H From the vessel D at a suitable level leads downwardly the pipe M of the Water conducting meanswhich here includes, the same as before, a. trap G into which the pipe M debouches and which communicates with the boiler A by a pipe N and has an over- I ceptacle G so as to be cooled by the water therein and then extends upwardly to asuitable level above the bottom of receptacle 1),

- J serving for the delivery of cooled 'che'mi-- cally pure water. Extending upwardly from the apex of the conical wall a and along the same is apipe Q which affords a v vent from the condensing chamber B to the atmosphere. Thus, as in the construc tion first described, any gas passing through the vent is cooled by the cooling liquid admitted atH.

Havi thus fully described my invention,

what I c aim as new and desire to secure by Letters Patent is:

1. An apparatus of the class described including a boiler, a condensing chamber,

means to conduct the gaseous content of the The lower part of the shell a forms boiler into saidchamber, a liquid receptacle.

arranged to absorb heat from said chamber and having a top opening,-and liquid conducting means including a cooling liquid vessel arranged laterally of said receptacle and in cooling relation to said chamber and having an overflow at a lower level than the top opening of said receptacle, and means to deliver liquid from said vessel to the receptacle at a level approximately the same as the overflow. i

' 2. An apparatus of the class described including a boiler, a condensing chamber, meansrto conduct the gaseous content of boiler into said chamber, a liquid receptacle arranged within said chamber and having a top opening, there being a space lateral of said receptacle and within the chamber, and liquid conducting means including a cooling liquid vessel arranged laterally of said receptacle and laterally adjoining said space and having an overflow.

-3. An apparatus of the class described including a boiler, a condensing chamber, means to conduct the gaseous contentof the boiler into said chamber, a liquid receptacle arranged within said chamber and having a top opening, there being a space lateral of saidreceptacle and within the chamber, and liquid conducting means including a cooling liquid vessel arranged laterally of said receptacle and' formed around said chamber and laterally adjoining said space and having an overflow.

4. An apparatus of the class described including a boiler, a condensing chamber,

.means to conduct the gaseous content of the including a condensing chamber, a liquid receptacle arranged to absorb heat 'from said chamber, and liquid conducting means including a cooling vessel formed around said chamber, said means maintaining a constant liquid level in said receptacle.

6. An apparatus of the class described including a boiler, a condensing chamber, means to conduct the gaseous content of the boiler into said chamber, and means to conduct a cooling liquid from an extraneous source including a cooling vessel formed around said chamber, said second-named means maintaining a constant. liquid level in the boiler. v

7. An apparatus of the class described including a boiler, a condenser chamber, means to conduct the I ascousi content of the boiler into said cham i', and meanscto conduct a' cluding a cooling vessel formed around said chamber and also including a liquid trap communicating with the boller and having an overflow outlet at the liquid level in the boiler.

8. An apparatus of the class described cluding a condensing chamber, means to conduct the gas to be condensed into said chamber, means to draw oft the condensate from said chamber, and means to conduct a cooling liquid arranged to cool both said chamber and the draw-off means.

9. An apparatus of the class described including a boiler, a condensing chamber, means to conduct, the gaseous content of the boiler into said chamber, means to draw off the condensate from said chamber, and means to conduct a cooling liquidarranged to cool both said chamber and the draw-off means and maintaining a constant level in the boiler.

10. An apparatus of the class described including a condensing chamber, means to conduct the gas to be condensed into said chamber, means to draw ofl the condensate from said chamber, a cooling vessel arranged to cool said chamber and having means to admit a cooling liquid thereto, and a liquid container having an outlet and arranged below said vessel, said vessel having means to deliver its liquid into the container and the container havin the draw-oil means extending therethroug 11. An apparatus of the class described including, in combination, a condensing cham- -cluding a ber, an open liquid receptacle arranged to absorb heat from the contents of said chamber, and means to conduct 'a cooling liquid arranged to cool said chamber and connected with the receptacle to supply li uid thereto.

12. An apparatus of the class escribed including a boiler, a condensing chamber above cludin a condensing chamber having means to con net the gas to be condensed thereto,

and means to conduct a cooling liquid in cooling proximity to said chamber, said chamber having a from through said liquid conducting means.

14. An ap aratus of the class described inoiler, a condensing chamber, means to 'conductthe gaseous content of the boiler into said chamber, a liquid receptacle arranged to absorb heat from said chamber and having a top opening, and liquid con ducting means including a cooling liquid vessel in cooling relation to said chamber and having an overflow at a lower level than the top opening of said rece tacle, and means to deliver liquid fromsaid vessel to the receptacle.

In testimony whereof I afiix my signature.

GOTTLIEB EPPRECHT.

gas vent leading there-' 

